android - total replacement of the lock screen for root device

Question

suppose i make an app only for root devices , which will allow to replace the lock screen (the screen that appears when the device's screen is being awaken) .

i know that there are ways to do so without root , but they are all considered a workaround and on some devices they don't work well at all (like the sony erricson , which shows their default locker after unlocking with the installed locker) .

is such a thing possible? maybe there is a path to the apk (or whatever) that is responsible of showing the lock screen?

is it also possible to backup what is responsible for the lock screen?

Answer 1

The android lockscreen are not handled by apk's. They're part of the framework itself ( except for the FaceUnlock). What you could do is to add another IBinder interface to "com.android.internal.policy.impl.LockPatternKeyguardView.java". Have a look at how "FaceUnlock" is implemented.

Regards,

Robert